EP0400709A3 - Dialkyl dicarbonates as blowing agents for polymers - Google Patents

Dialkyl dicarbonates as blowing agents for polymers Download PDF

Info

Publication number
EP0400709A3
EP0400709A3 EP19900201261 EP90201261A EP0400709A3 EP 0400709 A3 EP0400709 A3 EP 0400709A3 EP 19900201261 EP19900201261 EP 19900201261 EP 90201261 A EP90201261 A EP 90201261A EP 0400709 A3 EP0400709 A3 EP 0400709A3
Authority
EP
European Patent Office
Prior art keywords
dialkyl dicarbonates
polymers
blowing agents
composition
dicarbonates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19900201261
Other languages
German (de)
French (fr)
Other versions
EP0400709A2 (en
Inventor
Ralph Franklin
William John E. Parr
Gerald Fesmam
Barry Alan Jacobs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo Nobel NV
Original Assignee
Akzo NV
Akzo Nobel NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzo NV, Akzo Nobel NV filed Critical Akzo NV
Publication of EP0400709A2 publication Critical patent/EP0400709A2/en
Publication of EP0400709A3 publication Critical patent/EP0400709A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The present invention pertains to a composition of matter and to a method of using the composition to produce foamed plastics, wherein a major, auxiliary source of blowing agent for the foam is the decomposition of dialkyl dicarbonates. The dialkyl dicarbonates can be decomposed over temperatures ranging from about 10°C to about 45°C when used in combination with particular tertiary amine decomposition catalysts.
EP19900201261 1989-05-18 1990-05-18 Dialkyl dicarbonates as blowing agents for polymers Withdrawn EP0400709A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/353,852 US4983320A (en) 1989-05-18 1989-05-18 Dialkyl dicarbonates as blowing agents for polymers
US353852 1999-07-15

Publications (2)

Publication Number Publication Date
EP0400709A2 EP0400709A2 (en) 1990-12-05
EP0400709A3 true EP0400709A3 (en) 1991-08-14

Family

ID=23390852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900201261 Withdrawn EP0400709A3 (en) 1989-05-18 1990-05-18 Dialkyl dicarbonates as blowing agents for polymers

Country Status (4)

Country Link
US (1) US4983320A (en)
EP (1) EP0400709A3 (en)
JP (1) JPH0368636A (en)
CA (1) CA2016535A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140052A (en) * 1989-05-18 1992-08-18 Akzo N.V. Hydrolyzed dialkyl dicarbonates as blowing agents for polymers
US5086083A (en) * 1989-05-18 1992-02-04 Akzo Nv Dialkyl dicarbonates as blowing agents for polymers
JP2832276B2 (en) * 1989-06-30 1998-12-09 テイ・エステック株式会社 Method for producing urethane foam molded article
DE4006247A1 (en) * 1990-02-28 1991-08-29 Bayer Ag Open-celled, elastic, flexible polyurethane foam
US5281743A (en) * 1993-03-12 1994-01-25 Akzo N.V. Uncatalyzed synthesis of symmetrical dicarbonates
ID22277A (en) 1996-11-04 1999-09-30 Ici Plc RIGID POLYURETHANE FOAM
DE69705420T2 (en) 1996-11-04 2002-05-23 Huntsman International Llc, Salt Lake City Rigid polyurethane foams
JP2012058206A (en) 2010-09-13 2012-03-22 Toshiba Corp Method and device for inspecting defect in mask
JP5944189B2 (en) 2012-03-15 2016-07-05 株式会社東芝 Mask substrate defect inspection method and defect inspection apparatus, photomask manufacturing method and semiconductor device manufacturing method
JP7249998B2 (en) 2018-03-30 2023-03-31 株式会社カネカ REACTIVE SILICON-CONTAINING POLYMER AND CURABLE COMPOSITION
US20210261746A1 (en) * 2018-06-07 2021-08-26 Kaneka Corporation Resin composition for foam, foam, and production method of foam

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053399A1 (en) * 1970-10-30 1972-05-04 Werner & Mertz Gmbh Resin blowing agent - comprising pyrocarbonic ester
FR2220564A1 (en) * 1973-03-06 1974-10-04 Poudres & Explosifs Ste Nale Cellular plastics prepn. using dicarbonates as expanding agent - contg. isopropyl or tert-butyl gps. and being completely converted to gas at low temp
FR2313419A1 (en) * 1975-06-04 1976-12-31 Bayer Ag PERFECTED PROCESS FOR PREPARING POLYURETHANN FOAMS WITH COMPACT SKIN
EP0022994A1 (en) * 1979-07-13 1981-01-28 Metzeler Kautschuk Gmbh Cellular elastomer foams and process for their preparation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1694068C3 (en) * 1966-07-21 1976-01-08 Bayer Ag, 5090 Leverkusen Process for the production of foams
DE1694069C3 (en) * 1966-07-21 1976-01-02 Bayer Ag, 5090 Leverkusen Process for the production of foams
US4110273A (en) * 1974-08-29 1978-08-29 Bayer Aktiengesellschaft Blowing agent mixture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053399A1 (en) * 1970-10-30 1972-05-04 Werner & Mertz Gmbh Resin blowing agent - comprising pyrocarbonic ester
FR2220564A1 (en) * 1973-03-06 1974-10-04 Poudres & Explosifs Ste Nale Cellular plastics prepn. using dicarbonates as expanding agent - contg. isopropyl or tert-butyl gps. and being completely converted to gas at low temp
FR2313419A1 (en) * 1975-06-04 1976-12-31 Bayer Ag PERFECTED PROCESS FOR PREPARING POLYURETHANN FOAMS WITH COMPACT SKIN
EP0022994A1 (en) * 1979-07-13 1981-01-28 Metzeler Kautschuk Gmbh Cellular elastomer foams and process for their preparation

Also Published As

Publication number Publication date
EP0400709A2 (en) 1990-12-05
CA2016535A1 (en) 1990-11-18
JPH0368636A (en) 1991-03-25
US4983320A (en) 1991-01-08

Similar Documents

Publication Publication Date Title
ATE177456T1 (en) METHOD FOR PRODUCING POLYSTYRENE FOAM
EP0353061A3 (en) Blowing agents for polyurethane foam
EP0400709A3 (en) Dialkyl dicarbonates as blowing agents for polymers
DE59800060D1 (en) Process for the production of rigid polyurethane foams with low thermal conductivity
ATE163662T1 (en) METHOD FOR PRODUCING A POLYURETHANE FOAM IN THE PRESENCE OF HYDROCARBONS AS A BLOWING AGENT MIXTURE
GB2289468A (en) Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby
AU652866B2 (en) Expandable styrene polymers containing carbon dioxide as blowing agent
MY121090A (en) Porous polymer particles
AU7402591A (en) A process for producing a flame-retarding elastic soft poyurethane foam plastic
WO1994020590A3 (en) Process for waste plastic recycling
EP0611793A3 (en) Foamable organic polymer composition and production of foamed article.
DE58905537D1 (en) Process for the production of molded articles from polyurethane foams.
DE59711326D1 (en) Process for the production of flexible polyurethane foams
EP0920966A3 (en) A process for devolatilization
HU9603111D0 (en) Closed cell, low density ethylenic polymer foam
DE3169496D1 (en) Foamable olefin polymer compositions stabilized with n-alkyl substituted amides, foaming process using them and foam article produced
ATE268789T1 (en) METHOD FOR REUSING MICROCELLULAR POLYURETHANES
ATE190339T1 (en) METHOD FOR PRODUCING POLYURETHANE FOAM
DE3168850D1 (en) Foamable olefin polymer compositions stabilized with certain naphthyl amine compounds, foaming process using them and foam article produced
ATE230659T1 (en) METHOD AND DEVICE FOR PRODUCING POLYURETHANES CONTAINING FILLERS
ATE27706T1 (en) PROCESS FOR THE MANUFACTURE OF FINE-CELL FOAMS FROM STYRENE POLYMERISATS.
ATE148719T1 (en) METHOD FOR PRODUCING HARD URETHANE GROUPS AND FOAM MATERIALS PREMIUMLY CONTAINING ISOCYANURATE GROUPS
ATE147390T1 (en) METHOD FOR PRODUCING 3',4'-ANHYDROVINBLASTIN
DE68911148D1 (en) COMPOSITIONS AND METHODS FOR PRODUCING FOAM PLASTICS.
ATE177457T1 (en) METHOD FOR PRODUCING CELLULAR POLYURETHANES

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE ES FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19920117

17Q First examination report despatched

Effective date: 19940223

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AKZO NOBEL N.V.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19970324